I recommend CSS3 – Pushing The Limits highly, and it covers the bleeding edge of CSS3.
Other resources include Learn Advanced HTML & CSS and Learn Layout, and Lea Verou has many interesting CSS3 articles. Scalable and Modular Architecture for CSS is a book that is freely available online, and there are several Sass books including Sass & Compass For Designers, Sass and Compass in Action and Sass for Web Designers.
This front end web development test is very difficult and informative.
How to Install Xcode, Homebrew, Git, RVM & Ruby on Rails in Snow Leopard, Lion, and Mountain Lion
I was certain I’d already posted this but couldn’t find it. I just loaded Mountain Lion on my Macbook and had to dig thru Google to find this page again. It is continually updated and very handy.
The other day I moved to a new hosting account and made the mistake of not backing up first. I was able to use a backup from July to get many of the posts. Then I found Google had cached the posts from August, so I was able to re-post those. However, I lost the theme I was using, which was a very skeletal alteration of an HTML5 starter theme called Bones. One thing I don’t like about the default 2013 theme is that all the navigation is in the footer instead of in a sidebar, although that is probably easily fixed. It is mobile friendly and responsive so it works for now at least.